Roller skate



FIG. 1 is a right side elevational view of a roller skate, showing my new design, the left side elevational view being a mirror image thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right front perspective view thereof with the two attachment plates removed;

FIG. 7 is a right side elevational view thereof, the left side elevational view thereof being the mirror image thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a front elevational view thereof; and,

FIG. 11 is a rear elevational view thereof. 

The ornamental design for a roller skate, as shown and described. 